Density is a measure of how "light" or "heavy" an object is for its size. To find the density of an object, divide the mass by the volume. (Calculators are recommended.)
What is the density of the mineral? (Units are grams per milliliter, g/mL.)

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.

answer called a epicycle;